乌云往往是下雨的征兆。
[运用提升]
用signal, symbol, sign和mark填空。
(1)Mandela has become a________of the blacks fighting against the whites in South Africa.
(2)There is no ________of his getting over his illness in a short time.
(3)You can make a ________where you have questions.
(4)The door and the windows were all closed and there was no________of forced entry.
(5)Look out for a________to the motorway.
(6)Who makes these dirty________on my new book?
(7)She made a________with her arm for a left turn.
答案:(1)symbol (2)sign (3)mark (4)sign (5)sign
(6)marks (7)signal
3.arise vi. 出现;发生;起床,起身;上升
观察句子,体会arise的不同词义:
①Seeing his mother return home, the boy arose from his chair immediately.(起身)
②New problems will arise one after another in future.(出现)
③They arose at sunrise to get an early start to the park.(起床)
④A curl of smoke is arising out of the chimney.(上升)
⑤Accidents often arise_from carelessness.[(由)……产生]
[归纳拓展]
(1)arise表示“出现,发生”之意时,其主语多为problem, argument, quarrel, danger, movement, question等抽象名词,多指不好的事情发生或出现。
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